PARSER_CHECK_USER() : BASE_PARSER(), result(false) {}
int ParseStart(void *data, const char *el, const char **attr);
int ParseEnd(void *data, const char *el);
PARSER_CHECK_USER() : BASE_PARSER(), result(false) {}
int ParseStart(void *data, const char *el, const char **attr);
int ParseEnd(void *data, const char *el);